Dwayne Johnson's Christmas present for Jimmy Fallon [1] came a little late — but of course it's meant to whip him into shape. On the Jan. 16 episode of The Tonight Show Starring Jimmy Fallon [2], the host received a FaceTime call from Dwayne with a special request to look for his belated gift on stage, behind a curtain. There, Jimmy found a 250-pound rock that he was challenged to drag across the studio using a chain. Sounds . . . fun? Well, this is the type of feat Dwayne pushes people to complete on his show, The Titan Games, so I guess Jimmy could consider himself a fitness contender. Watch the full video to see how he approaches the task. Spoiler: he might need a little help from his friends Steve Higgins and Black Thought.